Asus M2N-LR User Manual
M2N-LR
Series
Motherboard
E2804
First Edition
September 2006
Copyright © 2006 ASUSTeK COMPUTER INC. All Rights Reserved.
No part of this manual, including the products and software described in it, may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any
means, except documentation kept by the purchaser for backup purposes, without the express written
permission of ASUSTeK COMPUTER INC. (“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless
such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the
product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS
DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS,
LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE),
EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY
DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR
INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE,
AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO
RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS
MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be registered trademarks or
copyrights of their respective companies, and are used only for identication or explanation and to the
owners’ benet, without intent to infringe.
ii
Contents
Notices ......................................................................................................... vi
Safety information ..................................................................................... vii
About this guide ....................................................................................... viii
M2N-LR specications summary ............................................................... x
Chapter 1: Product introduction
1.1 Welcome! ...................................................................................... 1-1
1.2 Package contents ......................................................................... 1-1
1.3 Special features ............................................................................ 1-2
1.3.1 Product highlights ........................................................... 1-2
1.3.2 ASUS Special features ................................................... 1-4
Chapter 2: Hardware information
2.1 Before you proceed ..................................................................... 2-1
Onboard LED ................................................................................. 2-1
2.2 Motherboard overview ................................................................. 2-2
2.2.1 Placement direction ........................................................ 2-2
2.2.2 Screw holes .................................................................... 2-2
2.2.3 Motherboard layout ......................................................... 2-3
2.2.4 Layout contents ............................................................... 2-5
2.3 Central Processing Unit (CPU) ................................................... 2-7
2.3.1 Installing the CPU ........................................................... 2-7
2.3.2 Installing the heatsink and fan ........................................ 2-9
2.4 System memory ......................................................................... 2-12
2.4.1 Overview ....................................................................... 2-12
2.4.2 Memory congurations .................................................. 2-12
2.4.3 Installing a DIMM .......................................................... 2-13
2.4.4 Removing a DIMM ........................................................ 2-13
2.5 Expansion slots .......................................................................... 2-14
2.5.1 Installing an expansion card ......................................... 2-14
2.5.2 Conguring an expansion card ..................................... 2-14
2.5.3 Interrupt assignments ................................................... 2-15
2.5.4 PCI Express x16 slot ..................................................... 2-15
2.5.5 PCI slot ......................................................................... 2-16
2.5.6 ZCR slot ........................................................................ 2-16
iii
Contents
2.6 Jumpers ..................................................................................... 2-17
2.7 Connectors ................................................................................. 2-21
2.7.1 Rear panel connectors .................................................. 2-21
2.7.2 Internal connectors ....................................................... 2-22
Chapter 3: Powering up
3.1 Starting up for the rst time ........................................................ 3-1
3.2 Powering off the computer .......................................................... 3-2
3.2.1 Using the OS shut down function .................................... 3-2
3.2.2 Using the dual function power switch .............................. 3-2
Chapter 4: BIOS setup
4.1 Managing and updating your BIOS ............................................ 4-1
4.1.1 Creating a bootable oppy disk ....................................... 4-1
4.1.2 AFUDOS utility ................................................................ 4-2
4.1.3 ASUS CrashFree BIOS 2 Utility ...................................... 4-5
4.1.4 ASUS Update utility ........................................................ 4-7
4.2 BIOS setup program .................................................................. 4-10
4.2.1 BIOS menu screen .........................................................4-11
4.2.2 Menu bar ........................................................................4-11
4.2.3 Navigation keys ............................................................. 4-12
4.2.4 Menu items ................................................................... 4-12
4.2.5 Sub-menu items ............................................................ 4-12
4.2.6 Conguration elds ....................................................... 4-12
4.2.7 Pop-up window ............................................................. 4-12
4.2.8 General help ................................................................. 4-12
4.3 Main menu .................................................................................. 4-13
4.3.1 System Time ................................................................. 4-13
4.3.2 System Date ................................................................. 4-13
4.3.3 Legacy Diskette A ......................................................... 4-13
4.3.4 Primary IDE Master/SATA ............................................. 4-14
4.3.5 IDE Conguration .......................................................... 4-15
4.3.6 System Information ....................................................... 4-17
iv
Contents
4.4 Advanced menu ......................................................................... 4-18
4.4.1 CPU Conguration ........................................................ 4-18
4.4.2 Chipset ......................................................................... 4-19
4.4.3 Onboard Device Conguration ...................................... 4-24
4.4.4 PCI PnP ........................................................................ 4-26
4.4.5 MPS Conguration ........................................................ 4-27
4.4.6 USB Conguration ........................................................ 4-27
4.4.7 Remote Access Conguration ....................................... 4-29
4.5 Power menu ................................................................................ 4-31
4.5.1 ACPI APIC Support ....................................................... 4-31
4.5.2 ACPI MCFG Support .................................................... 4-31
4.5.3 APM Conguration ........................................................ 4-32
4.5.4 Hardware Monitor ......................................................... 4-33
4.6 Boot menu .................................................................................. 4-35
4.6.1 Boot Device Priority ...................................................... 4-35
4.6.2 Boot Settings Conguration .......................................... 4-36
4.6.3 Security ......................................................................... 4-37
4.7 Exit menu .................................................................................... 4-39
Chapter 5: Software support
5.1 Installing an operating system ................................................... 5-1
5.2 Support CD information .............................................................. 5-1
5.2.1 Running the support CD ................................................. 5-1
5.2.2 Drivers menu ................................................................... 5-2
5.2.3 Management Software menu .......................................... 5-3
5.2.4 Utilities menu .................................................................. 5-4
5.2.5 ASUS Contact information .............................................. 5-5
5.2.6 Other information ............................................................ 5-5
5.3 Software information ................................................................... 5-7
5.3.1 Cool ‘n’ Quiet!™ Technology ........................................... 5-7
5.4 RAID congurations .................................................................... 5-9
5.4.1 Installing hard disks ...................................................... 5-10
5.4.2 NVIDIA® MediaShield RAID congurations ...................5-11
5.5 Creating a RAID driver disk ....................................................... 5-18
v
Notices
Federal Communications Commission Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
•
This device may not cause harmful interference, and
•
This device must accept any interference received including interference that
may cause undesired operation.
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with manufacturer’s
instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following
measures:
•
Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and receiver.
•
Connect the equipment to an outlet on a circuit different from that to which the
receiver is connected.
•
Consult the dealer or an experienced radio/TV technician for help.
The use of shielded cables for connection of the monitor to the graphics card is
required to assure compliance with FCC regulations. Changes or modications
to this unit not expressly approved by the party responsible for compliance
could void the user’s authority to operate this equipment.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions
from digital apparatus set out in the Radio Interference Regulations of the
Canadian Department of Communications.
This class B digital apparatus complies with Canadian ICES-003.
vi
Safety information
Electrical safety
•
To prevent electrical shock hazard, disconnect the power cable from the
electrical outlet before relocating the system.
•
When adding or removing devices to or from the system, ensure that the
power cables for the devices are unplugged before the signal cables are
connected. If possible, disconnect all power cables from the existing system
before you add a device.
•
Before connecting or removing signal cables from the motherboard, ensure
that all power cables are unplugged.
•
Seek professional assistance before using an adpater or extension cord.
These devices could interrupt the grounding circuit.
•
Make sure that your power supply is set to the correct voltage in your area.
If you are not sure about the voltage of the electrical outlet you are using,
contact your local power company.
•
If the power supply is broken, do not try to x it by yourself. Contact a
qualied service technician or your retailer.
Operation safety
•
Before installing the motherboard and adding devices on it, carefully read all
the manuals that came with the package.
•
Before using the product, make sure all cables are correctly connected and the
power cables are not damaged. If you detect any damage, contact your dealer
immediately.
•
To avoid short circuits, keep paper clips, screws, and staples away from
connectors, slots, sockets and circuitry.
•
Avoid dust, humidity, and temperature extremes. Do not place the product in
any area where it may become wet.
•
Place the product on a stable surface.
•
If you encounter technical problems with the product, contact a qualied
service technician or your retailer.
This symbol of the crossed out wheeled bin indicates that the product (electrical
and electronic equipment) should not be placed in municipal waste. Check local
regulations for disposal of electronic products.
vii
About this guide
This user guide contains the information you need when installing and conguring
the motherboard.
How this guide is organized
This guide contains the following parts:
• Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new
technology it supports.
• Chapter 2: Hardware information
This chapter lists the hardware setup procedures that you have to perform
when installing system components. It includes description of the switches,
jumpers, and connectors on the motherboard.
• Chapter 3: Powering up
This chapter describes the power up sequence and ways of shutting down
the system.
• Chapter 4: BIOS setup
This chapter tells how to change system settings through the BIOS Setup
menus. Detailed descriptions of the BIOS parameters are also provided.
• Chapter 5: Software support
This chapter describes the contents of the support CD that comes with the
motherboard package.
Where to nd more information
Refer to the following sources for additional information and for product and
software updates.
1. ASUS websites
The ASUS website provides updated information on ASUS hardware and
software products. Refer to the ASUS contact information.
2. Optional documentation
Your product package may include optional documentation, such as warranty
yers, that may have been added by your dealer. These documents are not
part of the standard package.
viii
Conventions used in this guide
To make sure that you perform certain tasks properly, take note of the following
symbols used throughout this manual.
DANGER/WARNING: Information to prevent injury to yourself
when trying to complete a task.
CAUTION: Information to prevent damage to the components
when trying to complete a task.
IMPORTANT: Instructions that you MUST follow to complete a
task.
NOTE: Tips and additional information to help you complete a
task.
Typography
Bold text Indicates a menu or an item to select.
Italics
Used to emphasize a word or a phrase.
<Key> Keys enclosed in the less-than and greater-than sign
means that you must press the enclosed key.
Example: <Enter> means that you must press the
Enter or Return key.
<Key1>+<Key2>+<Key3> If you must press two or more keys simultaneously, the
key names are connected with a plus sign (+).
Example: <Ctrl>+<Alt>+<D>
Command Means that you must type the command exactly as
shown.
Example: At the DOS prompt, type the command line:
format a:
ix
M2N-LR specications summary
CPU Socket AM2 for AMD Athlon™ 64 X2 /AMD Athlon™ 64
Chipset NVIDIA® nForce™ 570 SLI MCP (MCP55P)
System bus 2000 MT per second
Memory Dual-channel memory architecture
Expansion slots 1 x PCI Express™ x16 slots (x16 Link)
Storage MCP55P supports:
USB 2 x USB 2.0 ports (on the rear panel)
DUAL LAN Dual Onboard BCM5721 Gigabit PCI-E LAN controllers
/AMD Athlon™ 64 FX/AMD Sempron™/AMD Opteron™
64 X2 processors
Supports AMD Cool ‘n’ Quiet™ Technology
AMD64 architecture enables simultaneous 32-bit and
64-bit computing
AMD Live!™ ready
4 x 240-pin DIMM sockets support unbuffered/ECC
DDR2 800/667/533/400 MHz memory modules
Supports up to 8 GB system memory
1 x PCI slot (33MHz/32-bit/3.3V)
2 x PCI-X slots
- 1 x IDE connector for up to two Ultra DMA
300/150/133/100 devices
- 6 x Serial ATA 3.0 Gb/s connectors support six
Serial ATA devices
- RAID 0, RAID 1, RAID 5, RAID 10, and JBOD
congurations spanning
- RAID 0, RAID 1, RAID 10, RAID 5, and JBOD
supported across Serial ATA drives via the onboard
NVIDIA® MediaShield™ RAID controller
Adaptec® AIC-8130 PCI-X SATA-II controller supports:
- 4 x SATA-II 3Gb/s drives with RAID 0, RAID 1,
RAID 10, and JBOD congurations
- Zero-Channel RAID card (optional)
6 x USB 2.0 ports (mid-board)
(continued on the next page)
x
M2N-LR specications summary
Internal connectors 3 x USB 2.0 connectors support six additional USB 2.0
Rear panel 1 x PS/2 keyboard port
Special features ASUS CrashFree BIOS 2 (boot from CD-ROM)
BIOS features 8 MB AMI BIOS, PnP, DMI 2.0, WfM2.0, SM BIOS 2.3
Manageability WOL by PME, WOR by PME, Chassis intrusion, PXE
Power requirement ATX power supply with 24-pin and 4-pin 12V plugs
Support CD contents Device drivers
Form factor ATX form factor: 12 in x 9.6 in (30.5 cm x 24.5 cm)
*Specications are subject to change without notice.
ports
1 x Floppy disk drive connector
1 x IDE connector for two devices
6 x Serial ATA connectors
10 x Serial ATA connectors (
2 x CPU fan connectors
2 x Front fan connectors
2 x Rear fan connectors
1 x 24-pin ATX power connector
1 x 4-pin ATX 12 V power connector
1 x Power supply SMBus connector
1 x Serial port (COM2)
1 x SMBus header for back-plane
1 x auxiliary panel connector
1 x system panel connector
1 x PS/2 mouse port
1 x Serial port (COM1)
2 x LAN (RJ-45) ports
USB 2.0/1.1 ports
1 x Parallel port (LPT1)
1 x VGA port
ASUS MyLogo2
ASUS EZ Flash
ATX 12V 2.0 compliant
ASUS Update Utility
ASUS Server Web-Based Management (ASWM)
M2N-LR/SATA model only
)
xi
This chapter describes the motherboard
features and the new technologies
it supports.
Product
1
introduction
Chapter summary
1
1.1 Welcome! ...................................................................................... 1-1
1.2 Package contents ......................................................................... 1-1
1.3 Special features ............................................................................ 1-2
ASUS M2N-LR Series
1.1 Welcome!
Thank you for buying an ASUS® M2N-LR Series motherboard!
The motherboard delivers a host of new features and latest technologies, making it
another standout in the long line of ASUS quality motherboards!
Before you start installing the motherboard, and hardware devices on it, check the
items in your package with the list below.
1.2 Package contents
Check your motherboard package for the following items.
Motherboard ASUS M2N-LR Series motherboard
Cables 1 x Ultra DMA 133/100/66 cable
1 x Floppy disk drive cable
3 x Serial ATA power cables for six devices
5 x Serial ATA power cables for six devices
Accessories I/O shield
Application CD ASUS motherboard support CD
Documentation User guide
M2N-LR model
M2N-LR/SATA model
:
:
If any of the above items is damaged or missing, contact your retailer.
ASUS M2N-LR Series 1-1
1.3 Special features
1.3.1 Product highlights
Latest processor technology
The motherboard comes with a 940-pin AM2 socket that supports AMD Athlon™
64 X2/AMD Athlon™ 64/AMD Athlon™ 64 FX/AMD Sempron™/AMD Opteron™
64 X2 processors. With an integrated low-latency high-bandwidth memory
controller and a highly scalable HyperTransport™ technology-based system bus,
the motherboard provides a powerful platform for your diverse computing needs,
increased ofce productivity, and enhanced digital media experience.
DDR2 memory support
The motherboard supports DDR2 memory that features data transfer rates of
800/667/533 MHz to meet the higher bandwidth requirements of the latest
3D graphics, multimedia, and Internet applications. The dual-channel DDR2
architecture doubles the bandwidth of your system memory to boost system
performance, eliminating bottlenecks with peak bandwidths of up to 12.8 GB/s.
PCI Express™ interface
The motherboard fully supports PCI Express, the latest I/O interconnect technology
that speeds up the PCI bus. PCI Express features point-to-point serial
interconnections between devices and allows higher clockspeeds by carrying data
in packets. This high speed interface is software compatible with existing PCI
specications.
Dual RAID solution
Onboard RAID controllers provide the motherboard with dual-RAID functionality
that allows you to select the best RAID solution using IDE or Serial ATA devices.
The NVIDIA® nForce™ 570 SLI MCP (MCP55P) chipset allows RAID 0, RAID 1,
RAID 5, RAID 10, and JBOD congurations for six SATA.
Serial ATA 3Gb/s technology
The motherboard supports the next-generation Serial ATA II 3.0 Gb/s technology
through the Serial ATA interfaces and the NVIDIA® nForce™ 570 SLI MCP
(MCP55P) chipset. The Serial ATA 3Gb/s specication provides twice the
bandwidth of the current Serial ATA products. Additionally, Serial ATA allows for
thinner, more exible cables with lower pin count and reduced voltage required.
1-2 Chapter 1: Product introduction
Zero Channel RAID (ZCR) solution (
The motherboard supports the optional Zero Channel RAID card in PCI-X for a
multi-RAID solution using Serial ATA 300 hard disk drives. The RAID 0 (striping),
RAID 1 (mirroring), RAID 10, RAID 5, and JBOD provide a cost-effective, reliable
and high-performance server system.
M2N-LR/SATA model only
)
Dual RAID solution (
Onboard RAID controllers provide the motherboard with dual-RAID functionality
that allows you to select the best RAID solution using IDE or Serial ATA devices.
The NVIDIA® CK8-04 SLI allows RAID 0, RAID 1, RAID 0+1, JBOD, and RAID 5
conguration for four SATA.
The AIC 8130 controller supports four additional SATA connectors and allows RAID
0, RAID 1, RAID 10, and JBOD.
M2N-LR/SATA model only
)
USB 2.0 technology
The motherboard implements the Universal Serial Bus (USB) 2.0 specication,
dramatically increasing the connection speed from the 12 Mbps bandwidth on USB
1.1 to a fast 480 Mbps on USB 2.0. USB 2.0 is backward compatible with USB 1.1.
Dual Gigabit LAN solution
The motherboard comes with dual Gigabit LAN controllers to provide the total
solution for your networking needs. These network controllers use the PCI Express
segment to provide faster data bandwidth for your wired or wireless Internet, LAN,
and le sharing requirements.
AMD Cool ‘n’ Quiet Technology
The motherboard supports the AMD Cool ‘n’ Quiet Technology, which monitors
system operation and automatically adjusts CPU voltage and frequency for a cool
and quiet operating environment.
ASUS M2N-LR Series 1-3
1.3.2 ASUS Special features
CrashFree BIOS 2
This feature allows you to restore the original BIOS data from the support CD in case
when the BIOS codes and data are corrupted. This protection eliminates the need to
buy a replacement ROM chip.
ASUS MyLogo2™
This new feature present in the motherboard allows you to personalize and add
style to your system with customizable boot logos.
1-4 Chapter 1: Product introduction
This chapter lists the hardware setup
procedures that you have to perform
when installing system components. It
includes description of the jumpers and
connectors on the motherboard.
information
Hardware
2
Chapter summary
2
2.1 Before you proceed ..................................................................... 2-1
2.2 Motherboard overview ................................................................. 2-2
2.3 Central Processing Unit (CPU) ................................................... 2-7
2.4 System memory ......................................................................... 2-12
2.5 Expansion slots .......................................................................... 2-14
2.6 Jumpers ...................................................................................... 2-17
2.7 Connectors ................................................................................. 2-21
ASUS M2N-LR Series
2.1 Before you proceed
M2N-LR/SATA
®
M2N-LR/SATA Onboard LED
SB_PWR1
OFF
Powered
Off
ON
Standby
Power
Take note of the following precautions before you install motherboard components
or change any motherboard settings.
• Unplug the power cord from the wall socket before touching any
component.
• Use a grounded wrist strap or touch a safely grounded object or to
a metal object, such as the power supply case, before handling
components to avoid damaging them due to static electricity.
• Hold components by the edges to avoid touching the ICs on them.
• Whenever you uninstall any component, place it on a grounded
antistatic pad or in the bag that came with the component.
• Before you install or remove any component, ensure
that the ATX power supply is switched off or the power cord is detached
from the power supply. Failure to do so may cause severe damage to the
motherboard, peripherals, and/or components.
Onboard LED
The motherboard comes with a standby power LED. The green LED lights up
to indicate that the system is ON, in sleep mode, or in soft-off mode. This is a
reminder that you should shut down the system and unplug the power cable
before removing or plugging in any motherboard component. The illustration
below shows the location of the onboard LED.
ASUS M2N-LR Series 2-1
2.2 Motherboard overview
M2N-LR/SATA
®
Before you install the motherboard, study the conguration of your chassis to
ensure that the motherboard ts into it.
Make sure to unplug the power cord before installing or removing the
motherboard. Failure to do so can cause you physical injury and damage
motherboard components.
2.2.1 Placement direction
When installing the motherboard, make sure that you place it into the chassis in
the correct orientation. The edge with external ports goes to the rear part of the
chassis as indicated in the image below.
2.2.2 Screw holes
Place nine (9) screws into the holes indicated by circles to secure the motherboard
to the chassis.
Do not overtighten the screws! Doing so can damage the motherboard.
Place this side towards
the rear of the chassis
2-2 Chapter 2: Hardware information
24.5cm (9.6in)
ASMB3
30.5cm (12in)
Socket M2
PS/2KBMS
T: Mouse
B: Keyboard
LANUSB12
PARALLEL
POR
T
VGA1 COM1
LAN1
LAN2
DDR2 DIMM_B2 (64 bit,240-pin module)
DDR2 DIMM_B1 (64 bit,240-pin module)
DDR2 DIMM_A2 (64 bit,240-pin module)
DDR2 DIMM_A1 (64 bit,240-pin module)
ATXPWR1
ATX12V1
SuperI/O
KBPWR1 FM_CPU1
8Mb
BIOS
BUZZ1
FM_CPU2
CPU_FAN2
CPU_FAN1
TPM1
FRNT_FAN1
CLRTC1
RECOVERY1
VGA_EN1
LAN_EN1
LAN_EN2
NVIDIA
MCP55P
Intel
PXH-V
PRI_IDE1
SATA5
SATA6
SATA3
SATA4
SATA1
SATA2
BPSMB1
USB34
USB56
USB78
COM2
PSUSMB1
AUX_PANEL1
PANEL1
CR2032 3V
Lithium Cell
CMOS Power
FLOPPY1
PCI_E1
PCIX3
PCI4
ATI
RN50
ZCR_PCIX2
REAR_FAN1
REAR_FAN2
Broadcom
BCM5721
Broadcom
BCM5721
SB_PWR1
M2N-LR
®
W83792AG
FRNT_FAN2
2.2.3 Motherboard layout
M2N-LR Model
ASUS M2N-LR Series 2-3
M2N-LR/SATA Model
24.5cm (9.6in)
ASMB3
30.5cm (12in)
Socket M2
PS/2KBMS
T: Mouse
B: Keyboard
LANUSB12
PARALLEL
POR
T
VGA1 COM1
LAN1
LAN2
DDR2 DIMM_B2 (64 bit,240-pin module)
DDR2 DIMM_B1 (64 bit,240-pin module)
DDR2 DIMM_A2 (64 bit,240-pin module)
DDR2 DIMM_A1 (64 bit,240-pin module)
ATXPWR1
ATX12V1
SuperI/O
KBPWR1 FM_CPU1
8Mb
BIOS
BUZZ1
FM_CPU2
CPU_FAN2
CPU_FAN1
TPM
FRNT_FAN1
CLRTC1
SATA_EN1
RECOVERY1
VGA_EN1
LAN_EN1
LAN_EN2
NVIDIA
MCP55P
Intel
PXH-V
AIC
8130
PRI_IDE1
SATA5
SATA6
SATA3
SATA4
SATA1
SATA2
SATA_RAID4
SATA_RAID3
SATA_RAID2
SATA_RAID1
BPSMB1
USB34
USB56
USB78
COM2
PSUSMB1
AUX_PANEL1
PANEL1
CR2032 3V
Lithium Cell
CMOS Power
FLOPPY1
PCI_E1
PCIX3
PCI4
ATI
RN50
ZCR_PCIX2
REAR_FAN1
REAR_FAN2
Broadcom
BCM5721
Broadcom
BCM5721
SB_PWR1
M2N-LR/SATA
®
W83792AG
FRNT_FAN2
2-4 Chapter 2: Hardware information
2.2.4 Layout contents
Slots Page
1. CPU sockets 2-7
2. DDR2 DIMM sockets 2-12
3. PCI Express x16 slot 2-15
4. PCI slot 2-16
5. ZCR slot 2-16
Jumper Page
1. Clear RTC RAM (CLRTC) 2-17
2. Keyboard power (3-pin KBPWR1) 2-18
3. Gigabit LAN controller setting (3-pin LAN_EN1, LAN_EN2) 2-18
4. VGA Graphics controller setting (3-pin VGA_EN1) 2-19
5. CPU fan pin selection (3-pin FM_CPU1, FM_CPU_2) 2-19
6. BIOS Recovery (3-pin RECOVERY1) 2-20
7. SATA controller setting (3-pin SATA_EN1) 2-20
Rear panel connectors Page
1. PS/2 mouse port (green) 2-21
2. Parallel port 2-21
3. LAN 2 (RJ-45) port 2-21
4. LAN 1 (RJ-45) port 2-21
5. VGA port 2-21
6. Serial (COM1) port 2-21
7. USB 2.0 ports 1 and 2 2-21
8. PS/2 keyboard port (purple) 2-21
ASUS M2N-LR Series 2-5
Internal connectors Page
1. Floppy disk drive connector (34-1 pin FLOPPY) 2-22
2. IDE connector (40-pin PRI_IDE) 2-22
3. Serial ATA connectors (7-pin SATA1, SATA2, SATA3
SATA4, SATA5, SATA6)
4. CPU Front and Rear fan connectors
(3-pin CPU_FAN1/2, FRONT_FAN1/2, REAR_FAN1/2)
5 Backplane SMBus connector (6-1 pin BPSMB1) 2-24
6. USB connector (10-pin USB34, USB56, USB78) 2-25
7. Serial port connector (10-1 pin COM2) 2-25
8. ATX power connectors (24-pin ATXPWR1, 4-pin ATX12V) 2-26
9. Power Supply SMBus connector (5-pin PSUSMB1) 2-26
10. System panel auxiliary connector (20-pin AUX_PANEL1) 2-27
11. System panel connector (20-pin PANEL1) 2-28
2-23
2-23
2-6 Chapter 2: Hardware information
2.3 Central Processing Unit (CPU)
M2N-LR/SATA
®
M2N-LR/SATA
CPU Socket M2
The motherboard comes with a 940-pin AM2 socket designed for the AMD Athlon™
64/AMD Athlon™ 64 FX/AMD Athlon™ 64 X2 and AMD Sempron™ processors.
The AM2 socket has a different pin layout from the 940-pin socket designed for
the AMD AM2 processor. Make sure you use a CPU is designed for the AM2
socket. The CPU ts in only one correct orientation. DO NOT force the CPU into
the socket to prevent bending the connectors on the socket and damaging the
CPU!
2.3.1 Installing the CPU
To install a CPU:
1. Locate the CPU socket on the motherboard.
2. Unlock the socket by pressing the
ASUS M2N-LR Series 2-7
lever sideways, then lift it up to a
90º angle.
Make sure that the socket lever is lifted up to a 90º angle; otherwise, the CPU
will not t in completely.
Socket lever
3. Position the CPU above the socket
such that the CPU corner with the
gold triangle matches the socket
corner with a small triangle.
4. Carefully insert the CPU into the
socket until it ts in place.
Gold triangle
Small triangle
5. When the CPU is in place, push
down the socket lever to secure the
CPU. The lever clicks on the side tab
to indicate that it is locked.
6. Install a CPU heatsink and fan
following the instructions that came
with the heatsink package.
2-8 Chapter 2: Hardware information
2.3.2 Installing the heatsink and fan
The AMD Athlon™ 64/AMD Athlon™ 64 FX/AMD Athlon™ 64 X2 and
AMD Sempron™ processors require a specially designed heatsink and fan
assembly to ensure optimum thermal condition and performance.
Make sure that you use only AMD-certied heatsink and fan assembly.
To install the CPU heatsink and fan:
1. Place the heatsink on top of the installed CPU, making sure that the heatsink
ts properly on the retention module base.
•
The retention module base is already installed on the motherboard
upon purchase.
•
You do not have to remove the retention module base when
installing the CPU or installing other motherboard components.
•
If you purchased a separate CPU heatsink and fan assembly, make
sure that a Thermal Interface Material is properly applied to the CPU
heatsink or CPU before you install the heatsink and fan assembly.
CPU fan
CPU heatsink
Retention module base
Retention bracket
Retention bracket lock
Your boxed CPU heatsink and fan assembly should come with installation
instructions for the CPU, heatsink, and the retention mechanism. If the
instructions in this section do not match the CPU documentation, follow the
latter.
ASUS M2N-LR Series 2-9
2. Attach one end of the retention bracket
to the retention module base.
3. Align the other end of the retention
bracket (near the retention bracket
lock) to the retention module base.
A clicking sound denotes that the
retention bracket is in place.
Make sure that the fan and
heatsink assembly perfectly ts
the retention mechanism module
base, otherwise you cannot snap
the retention bracket in place.
4. Push down the retention bracket lock
on the retention mechanism to secure
the heatsink and fan to the module
base.
2-10 Chapter 2: Hardware information
5. When the fan and heatsink assembly is in place, connect the CPU fan cable
M2N-LR/SATA
®
M2N-LR/SATA CPU Fan Connectors
GND
FANPWR2
FANOUT4
CPU_FAN1
GND
FANPWR2
FANOUT4
CPU_FAN2
to the connector on the motherboard labeled CPU_FAN.
• Do not forget to connect the CPU fan connector! Hardware monitoring
errors can occur if you fail to plug this connector.
• This connector is backward compatible to the 3-pin CPU fan connector.
ASUS M2N-LR Series 2-11
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